It has been just 4 months that u r trying, so continue for atleast 6-8 months more. Incase u dont conceive inspite of trying for 1 year then u need to intervene and consult a gynaecologist. I presume ur cycles are regular or else go for a Thyroid profile test. In an average 28-30 days length cycle, u both can have planned relations at 12th, 14 th , 16th, 18 th day of the cycle. There are chances of ovulation during this period and conception rates are high. Take tablet folic acid 5mg once daily for three months.It is for pre conceptional optimisation. U can visit a gynaec for an examination.

Do basic investigations that is ultrasound pelvis and husband's semen analysis with 3 to 6 days of abstinence from good lab preferably clinitech in thane. Consult ayurvedic gynecologist for preconception detoxification Panchakarma treatment and ayurvedic medicines with modification in diet and lifestyle which will restore the metabolism naturally and help you to conceive soon.